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Bordesley Viaduct

GWR Route: Banbury to Wolverhampton
GWR Route: North Warwickshire Line

Bordesley Station Photographs (58) Bordesley Viaduct (11) Duddeston Viaduct (8)
Bordesley Junction (17) Bordesley Shed (20) GWR Publication – Named Freight Trains
GWR Appendix to STT (Bordesley Junction & Station) GWR Service Time Table (GW Shunting & LMS Trips) GWR Appendix to STT
(Whistle Codes & other infomation)

Bordesley Viaduct

The five subsidiary segmental arches, or vaults, run at right angles to the main arches with the small pier walls founded on the main arches and running parallel with the tracks above. These small vaults are not visible externally and are only accessible via a manhole on the Upside of the viaduct, there being one above every main pier. As is described above, to get into these arches is very restrictive and is classed as a 'Confined Space' with specialist examiners required today.

Records show the vaults were only built into the original viaduct (Upside) and not the widened (Downside) section.

These vaults In photograph 'gwrbg1655' you can see the small pier walls. The arches have been removed and the workmen are preparing the walls for the concrete slabs. Photograph 'gwrbg1656' shows the slabs waiting to be installed, due to the angle the photo is taken you cannot see the pier walls in the excavation'. On Bordesley Viaduct the arches are generally seven rings thick, which would be approx. 31.5 inches or 800mm The majority of the piers on Bordesley Viaduct are solid, however some of the larger piers are hollow and have internal vaults to save weight and material. Normally the fill on the arches, may include some clay to try and waterproof the arch, then stone and finally track ballast Drainage from the viaduct is by weep-pipes above each pier, draining into hopper heads and the down the face of the pier to ground level.

Spans of Bordesley Viaduct as numbered from Bordesley Station end

Span No. 1 Adderley Street
Span Nos. 2 - 16 Land
Span No. 17 Heath Mill Lane
Span No. 18 Land
Span No. 19 Gibb Street
Span Nos. 20 & 21 Land
Span No. 22 River Rea
Span No. 23 Land
Span No. 24 Floodgate Street
Span Nos. 25 - 28 Land
Span No. 29 Milk Street
Span Nos. 30 - 33 Land
Span No. 34 Trent Street
Span Nos. 35 - 38 Land
Span No. 39 Oxford Street
Span Nos, 41, 43, 44, 46 & 47 Upside (Original) spans Land
Span Nos. 40, 42 & 45 Downside (Extension) spans Land
Span No. 48 Land
Span No. 49 Meriden Street
Span Nos. 50 - 53 Land
Span No. 54 Allison Street
Span Nos. 55 - 63 Land

Note. Span 45 is the only steel span in the viaduct.

John Fancote

Much of the information on this and other webpages of Warwickshire Railways is derived from articles or books listed in our 'bibliography'.

In September 1912 the construction of the massive brick arches alongside the existing viaduct was progressing
Ref: gwrbg1703
Great Western Railway
In 1912 the construction of the massive brick arches alongside the existing viaduct was progressing
The extension of the viaduct arch over Allison Street under construction in September 1912
Ref: gwrbg1715
Great Western Railway
The extension of the viaduct arch over Allison Street under construction in September 1912
View along the top of the new viaduct extension from the future Moor Street station throat towards Bordesley
Ref: gwrbg1716
Great Western Railway
View along the top of the new viaduct extension from the future Moor Street station throat towards Bordesley
Close-up showing the work involved in extending the viaduct from two to four sets of tracks
Ref: gwrbg1716a
Great Western Railway
Close-up showing the work involved in extending the viaduct from two to four sets of tracks
Removal of subsidiary brick arches from the supporting piers during the remodelling of the viaduct in 1939
Ref: gwrbg1655
GWR Magazine
Removal of subsidiary brick arches from the supporting piers during the remodelling of the viaduct in 1939

A six ton steam crane removes old brickwork during the partial reconstruction of Bordesley Viaduct in 1939
Ref: gwrbg1656
GWR Magazine
A six ton steam crane removes old brickwork during the partial reconstruction of Bordesley Viaduct in 1939
Looking towards Bordesley along the widened Duddeston Viaduct from the Moor Street Signal Box in December 1913
Ref: gwrbg1707
Great Western Railway
Looking towards Bordesley along the widened Bordesley Viaduct from the Moor Street Signal Box in December 1913
Close up of the approach to Bordesley showing the up and down main and relief lines & the goods line on the right
Ref: gwrbg1707
Great Western Railway
Close up of the approach to Bordesley showing the up and down main and relief lines & the goods line on the right
The exit signal for Moor Street Goods yard and the two air vents for the stable block located below
Ref: gwrbg2728
Great Western Railway
The exit signal for Moor Street Goods yard and the two air vents for the stable block located below
View showing the northern elevation of the viaduct with a Prairie tank on the down main line with a north bound freight
Ref: gwrbg2487
C Walker
View showing the northern elevation of the viaduct with a Prairie tank on the down main line with a north bound freight

Close up showing an 18" thick masonry slab running between the spandrel walls at Alcock Street bridge
Ref: gwrbg2721
Great Western Railway
An original drawing of Brunel's Oxford Street bridge on the Birmingham Extension railway looking northwards
Three original drawing extracts showing Bordesley Viaduct's vaults in both section and plan
Ref: gwrbg2792-3
J Fancote
Three original drawing extracts showing Bordesley Viaduct's vaults in both section and plan

Extract from Great Western Magazine Vol. 51. No.11, November 1939

Partial Reconstruction of Bordesley Viaduct – Effective Use of Pre-cast Reinforced Concrete Slabs by H. S. B. Whitley.

Bordesley Viaduct is situated on the London side of Snow Hill tunnel and station and carries the railway over a low-lying part of Birmingham, which has for many years been well covered with factories and house property. The report of the Commissioners on the Railway into Birmingham was presented in 1848, and this being ratified by an Act extending the broad gauge from Oxford to Birmingham, the line was opened in 1852. It is not certain that Brunel designed the Bordesley Viaduct, but whoever was responsible evolved a design which is probably unique, although it has been found that under present-day conditions parts of the structure have weakened and renewal work is now being undertaken. The structure is 2,900 feet in length, with a maximum height of 70 feet where it passes over the River Rea.

As originally designed it carried two lines of track, but owing to the great increase in traffic to Birmingham and the North, it became necessary to widen the structure to carry four running lines and one goods loop. The viaduct is built entirely of brickwork and has 60 main arches of an average span of 37 feet with a rise of 18 feet 6 inches. Instead of the voids between them being entirely filled with excavated material, five subsidiary segmental arches were constructed springing from small pier-walls, each having circular openings 18 inches in diameter to enable inspections to be made. These inspections are a very trying ordeal, especially for a tall or broad man. The person carrying out the inspection has to be pushed at one end and pulled at the other, and the work is made more difficult and unpleasant by the interior being wet with slime. More-over, the space between the piers is only 4 foot.

It was these subsidiary arches that began to show weakness, and it was decided to replace them with pre-cast reinforced concrete slabs. The method being adopted is as follows:- Occupation of both up and down main lines is obtained from midnight Saturday until the work is completed on Monday, usually about 6 a.m., and during this period the traffic is worked over the relief lines. To ascertain if the preliminary programme prepared could be carried out within the times laid down, and also to check the estimated cost, Arch No 29 was taken in hand and it was found that no alterations were required. On average 135 men, divided into three shifts are employed during the occupation, and they are provided with two 6-ton steam cranes and the necessary number of trucks to hold temporarily the filling removed, some of which has to be put back after the work of renewing the subsidiary arches has been completed.

As soon as the filling has been removed, together with brickwork in the arches, the tops of the piers are levelled and the reinforcement concrete slabs set in position. As the dimensions vary, however, each type of slab has to be numbered so that each will give the correct bearing. The slabs used were made in the Company’s Taunton concrete depot and had loops cast in them to facilitate handling. Having completed the laying of the slabs, the filling is reinstated, together with the ballast and permanent way. Fifty arches are being dealt with as described, and the work on forty-five has been completed; activities were suspended during the summer months, but will proceed at a later date.

Robert Ferris

An Account of the Works on the Birmingham Extension of the Birmingham and Oxford Junction Railway December 1851

By CHRISTOPHER BAGOT LANE Assoc. Inst. C.E.

The spandrill walls, next the face walls, were built with a batter of 1 in 10 inwards, and two iron tie rods were introduced at the level of the springing of the outside spandrill arches, so as to take the thrust from the face walls. The tie rods were of scrap iron, each 2 inches by 6 inch in section, keyed at each end through iron plates about 10 inches square, one being built into the face wall, and the other being flush with the inner side of the battered spandrill.

Corbels of heading bricks were carried out from the backs of the arches in the range of the spandrill walls, of the same width with them, and connected by a brick beam from arch to arch, for stiffening and equalizing the pressure from end to end of the viaduct.*

* This mode of construction was suggested by something very analogous in Blackfriars Bridge, and its useful effect may be judged of, from the comparatively small amount of the settlement of the arches.

Pieces of hoop iron, each about 3 feet long, were laid diagonally across the bed joints of the arches into which the corbels were bonded; another course of' brickwork was then added, and a second row of hoop iron was laid in the reverse position. Two rows of hoop iron, 12 inches apart, at right angles to each other, were also inserted at the tops of the pillars of the piers.

The settlement of the arches was taken by a spirit-level from three nails, which were driven into each face of the arch before the centres were slacked; ,one of the nails was placed in the crown of the arch, and the two others at 12 feet on each side. The levels were taken before the centres were slacked, and again when the laggings had been for a considerable time quite clear of the soffit.

Graham Laucht

Other information

In addition to the above extract by Christopher Bagot Lane, Graham has provided the following information:

Sadly access to the original 1849 drawings is limited as I believe they were originally held at Railtrack's Birmingham office, were converted to microfiche and now live near York in an impenetrable Network Rail archive. The following is I believe the extent of that collection:

Location and details Number Date Drawing No. Location
DUDDESTON VIADUCT - PLAN AND ELEVATIONS     62713 TNA
DUDDESTON VIADUCT - LONGITUDINAL AND TRANSVERSE SECTION     62714 TNA
DUDDESTON VIADUCT - PLAN, ELEVATION AND SECTION     62715 TNA
BORDESLEY VIADUCT - FLOODGATE STREET - ELEVATION AND SECTIONS   1849 61358 NR
BORDESLEY VIADUCT - FLOODGATE STREET - SECTIONS   1849 61359 NR
BORDESLEY VIADUCT - FLOODGATE STREET - SUPERSTRUCTURE AND FOUNDATIONS   1849 61360 NR
BORDESLEY VIADUCT - FLOODGATE STREET - ELEVATION AND SECTIONS   1849 61361 NR
BORDESLEY VIADUCT - MERIDAN STREET - ELEVATIONS AND SECTIONS   1849 61362 NR
BORDESLEY VIADUCT - MERIDAN STREET - SECTIONS   1849 61363 NR
BORDESLEY VIADUCT - MERIDAN STREET - SUPERSTRUCTURE AND FOUNDATIONS   1849 61364 NR
BORDESLEY VIADUCT - OXFORD STREET - SUPERSTRUCTURE AND FOUNDATIONS   1849 61365 NR
BORDESLEY VIADUCT - OXFORD STREET - LONG SECTIONS   1849 61366 NR
BORDESLEY VIADUCT - OXFORD STREET - SECTIONS   1849 61367 NR
BORDESLEY VIADUCT - OXFORD STREET - ELEVATIONS   1849 61368 NR
BORDESLEY VIADUCT - ALLISON STREET - ELEVATIONS AND SECTIONS   1849 61369 NR
BORDESLEY VIADUCT - ALLISON STREET - SUPERSTRUCTURE SECTIONS   1849 61370 NR
BORDESLEY VIADUCT - ALLISON STREET - ELEVATIONS AND FOUNDATIONS   1849 61371 NR
BORDESLEY VIADUCT - ELEVATION, LONG SECTION, SUPERSTRUCTURE AND FOUNDATIONS   1849 61372 NR
BORDESLEY VIADUCT - SECTIONS AND GIRDER DETAILS   1849 61373 NR
BORDESLEY VIADUCT - ELEVATION AND DETAILS   1849 61374 NR
BORDESLEY VIADUCT - PIERS, PART STREET - ALLISON STREET   1849 61375 NR
BORDESLEY VIADUCT - ELEVATIONS, PLAN AND SECTIONS   1849 61376 NR
PLAN, ELEVATIONS AND SECTIONS   1905 60837 NR
WIDENING - GENERAL PLAN 5 1905 60909 NR
BORDESLEY VIADUCT - MERIDIAN STREET - PLAN, ELEVATIONS AND SECTIONS 7 1908 62508 NR
BORDESLEY VIADUCT - ALLISON STREET TO MERIDIAN STREET - PLAN 6 1908 62509 NR
BORDESLEY VIADUCT - ALLISON STREET TO MERIDIAN STREET - ELEVATIONS AND SECTIONS 6 1908 62510 NR
BORDESLEY VIADUCT - PARK STREET TO ALLISON STREET - PLAN AND ELEVATIONS 5 1908 62515 NR
BORDESLEY VIADUCT - PARK STREET TO ALLISON STREET - SECTION AND DETAILS 5 1908 62516 NR
BORDESLEY VIADUCT - PARK STREET TO ALLISON STREET - PLAN AND ELEVATIONS 8 1908 62517 NR
BORDESLEY VIADUCT - OVER MSSRS. HOSSELL'S PROPERTY - STEELWORK DETAILS 7 1908 62519 NR
BORDESLEY VIADUCT - OVER MSSRS. HOSSELL'S PROPERTY - STEELWORK DETAILS 7 1908 62520 NR
BORDESLEY VIADUCT - OVER MSSRS. HOSSELL'S PROPERTY - PLAN, ELEVATIONS AND SECTIONS 7 1908 62521 NR
BORDESLEY VIADUCT - ALLISON STREET TO MERIDIAN STREET - PLAN, ELEVATIONS AND SECTIONS 2 1911 62511 NR
BORDESLEY VIADUCT - ALLISON STREET TO MERIDIAN STREET - SECTIONS AND DETAILS 2 1911 62512 NR
BORDESLEY VIADUCT - ALLISON STREET TO MERIDIAN STREET - PLAN, ELEVATIONS AND SECTIONS 1 1911 62513 NR
BORDESLEY VIADUCT - PARK STREET TO ALLISON STREET - PLAN AND ELEVATIONS 2 1911 62518 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS   1913 60848 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS 6 1913 60849 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS AND FRAMING 5 1913 60850 NR
BORDESLEY VIADUCT - WIDENING - FLOODGATE AND PLAN 6 1913 60851 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS 3 1913 60852 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS AND ARCHES 3 1913 60853 NR
BORDESLEY VIADUCT - WIDENING - PLAN, ELEVATIONS AND SECTIONS AND ARCHES 2 1913 60854 NR
BORDESLEY VIADUCT - WIDENING - SPANS ETC. 5 1913 60855 NR
BORDESLEY VIADUCT - WIDENING - SPANS ETC. 5 1913 60856 NR
BORDESLEY VIADUCT - WIDENING - SPANS ETC. 4 1913 60857 NR
BORDESLEY VIADUCT - WIDENING - SPANS ETC. 4 1913 60858 NR
BORDESLEY VIADUCT - WIDENING - GENERAL PLAN 1 1913 60859 NR
BORDESLEY VIADUCT - WIDENING - SECTIONS, ELEVATIONS AND LEVELS 2 1913 60860 NR
BORDESLEY VIADUCT - WIDENING - SPAN DETAILS 3 1913 60861 NR
BORDESLEY VIADUCT - WIDENING - SECTIONS 3 1913 60862 NR
BORDESLEY VIADUCT WIDENING - PLAN, ELEVATIONS AND DETAILS 4 1913 60865 NR
BORDESLEY VIADUCT WIDENING - LAWDEN ROAD ARCHES   1913 60866 NR
BORDESLEY VIADUCT WIDENING - BEDFORD ROAD ARCHES 7 1913 60867 NR
BORDESLEY VIADUCT WIDENING - HEATH MILL LANE 7 1913 60868 NR
BORDESLEY VIADUCT WIDENING - MERIDIAN STREET 9 1913 60883 NR
BORDESLEY VIADUCT WIDENING - PLAN, ELEVATIONS AND SECTIONS 9 1913 60884 NR
BORDESLEY VIADUCT WIDENING - STEELWORK DETAILS 8 1913 60885 NR
BORDESLEY VIADUCT WIDENING - STEELWORK DETAILS 8 1913 60886 NR
BORDESLEY VIADUCT WIDENING - ALLISON STREET TO MERIDIAN STREET 10 1913 60887 NR
BORDESLEY VIADUCT WIDENING - ALLISON STREET TO MERIDIAN STREET 10 1913 60888 NR

Graham Laucht continues 'thankfully a small number of the original drawings once held by the British Rail Residuary Board reside at Kew though they are now very fragile and access may be limited. Firstly drawing GWR 62714 from the Rail 39/10 bundle at TNA Kew, this is a reduction taken from the original scan which occupies the thick end of 18Mb thus the smaller attachment. I have also attached a smaller scrap showing the detail.

You will see that on the original B&OJ line to Curzon Street Brunel engineered the bridges to be largely hollow structures with the area above the jack arches infilled with excavation rubble and then "layered" over with an 18" thick masonry slab no doubt running between the spandrel walls. There is suggestion in a report by Baggot Lane concerning the original Bordesley construction that wrought iron tie rods also ran across between the spandrel walls though the ends of which may be beneath the outer brick skin as nothing is visible today. Assuming of course that the design of the Bordesley Viaduct was the same on the Birmingham Extension railway to Snow Hill.

It is interesting to note that one of the Rail 39/10 series (GWR 11500) shows the Duddeston viaduct side elevation drawn in pencil beneath the Bordesley elevation which was drawn in ink and wash. Though this collection is small it is very rich in detail particularly of the skewed abutments around Liverpool Street.

In many ways Duddeston was far more varied and interesting in construction particularly as it crossed some pretty difficult terrain enroute to its final frustrated 'destination' just short of the old Curzon Street site. See the schematic diagram below (gwrbg2720) for more infomation'.

Graham Laucht